Graphing non-functions on a line graph?

[Mike Keller]

I am graphing points on an XY plot sorted by time. I would like a lines from the last point added to the current point added. I have an image, shown below:



I want to add the points numbered 1 through 5 in that order, and draw something like shown on the left. However, when I use the XYLinePlot, I get something like on the right.

I apologize for asking so many questions, but the forum has been helpful so far, and I really like JFreeChart and want it to be useful for my application.

[skunk]

What dataset implementation are you using? By default, XYSeries automatically sorts items as they are added.

[Mike Keller]

What dataset implementation are you using? By default, XYSeries automatically sorts items as they are added.

Huh, I am using an XYSeries though, and I haven't changed how it sorts them. Yet it's still getting graphed according to the second part of that image.

[skunk]

Code: Select all

public XYSeries(java.lang.Comparable key, boolean autoSort)

Try passing false for the autoSort parameter

[Mike Keller]

That worked! Thanks for your help.